MARYLAND WEATHER SERVICE 235 



Catoctin. — On the eastern slope of the Catoctin, near Catoctin 

 Furnace, there are the same type of deep ravines, and narrow 

 stream valleys that were noted at Thurmont. The vegetation is 

 quite similar, Hemlock, Beech and Chestnut being the predomi- 

 nating trees in typical localities, and the following occurring in the 

 deeper soil about the heads of the small streams : 



Osmunda claytonia 

 Portcrantlius trifoliatus 

 Mitcliella repens 

 Cypripedium acaulc 

 Chelone glabra 

 Gaylusaccia frondosa 

 liubus odoratus 

 Bubus occidentalis 

 Chionanthus virgin ica 

 Populus grandidentata 

 Aralia nudicaulis 

 Unifolium canadense 

 Habenaria clavellata 

 Habenaria lacera 

 Gaultlieria procumbens 

 Gaylusaccia resinosa 

 Cimicifuga racemosa 

 Betula lenta 

 Nyssa biflora 

 Hydrangea arborescens. 



The crest of the Mountain divides into lesser ridges, one of 

 which runs from the axial line southeastward toward Frederick, 

 affording means of ascent for the road to Smithsburg. Upon the 

 lower slopes of this ridge the greater abundance of Tulip trees and 

 Chestnuts is noted. Beech, Paw-paw and additional species of 

 Oaks, which include beside Quercus alba and Quercus rubra, both 

 Quercus coccinea and Quercus velutina. In the small streams at 

 the side of the road, Callitriche heterophylla occurs in some abun- 

 dance. The slopes of the hill become gradually more dry as the 

 flat summit is reached, but the conditions remain fair well toward 



